138030883857 has 12 divisors (see below), whose sum is σ = 199386829200. Its totient is φ = 92016488088.

The previous prime is 138030883849. The next prime is 138030883877. The reversal of 138030883857 is 758388030831.

It is not a de Polignac number, because 138030883857 - 2³ = 138030883849 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (138030883817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121107 + ... + 539192.

It is an arithmetic number, because the mean of its divisors is an integer number (16615569100).

Almost surely, 2^138030883857 is an apocalyptic number.

It is an amenable number.

138030883857 is a deficient number, since it is larger than the sum of its proper divisors (61355945343).

138030883857 is a wasteful number, since it uses less digits than its factorization.

138030883857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683532 (or 683529 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 138030883857 in words is "one hundred thirty-eight billion, thirty million, eight hundred eighty-three thousand, eight hundred fifty-seven".